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Little progress has been made in the genetic analysis of drought tolerance,because it is a complex trait controlled by a number of genes and affected by various environmental factors.In here,we screened drought tolerant varieties with modified leaf water loss rate assay and visual drought tolerant phenotype in the greenhouse conditions with more than 800 varieties.Among these varieties,Samgang,Gumei4 and Apo showed the lowest of leaf water loss rate and strong drought tolerant phenotype and we choose Samgang for further study.